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Laser Cladding Treatment for Refurbishing Disc Brake Rotors : Environmental and Tribological Analysis

Olofsson, Ulf ; Lyu, Yezhe LU orcid ; Åström, Anna Hedlund ; Wahlström, Jens LU orcid ; Dizdar, Senad ; Nogueira, Ana Paula Gomes and Gialanella, Stefano (2021) In Tribology Letters 69(2).
Abstract

In this study, grey cast iron disc brake rotors are refurbished by adding a surface layer through laser cladding. Current methods to deal with replaced rotors mainly include remelting, with a minority fraction disposed in landfill. Both approaches result in a huge waste of resources and an increase in CO2 footprint. From a sustainable point of view, this study aims to evaluate the feasibility of refurbishing brake rotors by a combined environmental and tribological performance approach. A streamlined life cycle assessment is conducted to compare the environmental impacts between producing virgin grey cast iron brake rotors and refurbishing replaced brake rotors by laser cladding. It turns out that the energy consumption and... (More)

In this study, grey cast iron disc brake rotors are refurbished by adding a surface layer through laser cladding. Current methods to deal with replaced rotors mainly include remelting, with a minority fraction disposed in landfill. Both approaches result in a huge waste of resources and an increase in CO2 footprint. From a sustainable point of view, this study aims to evaluate the feasibility of refurbishing brake rotors by a combined environmental and tribological performance approach. A streamlined life cycle assessment is conducted to compare the environmental impacts between producing virgin grey cast iron brake rotors and refurbishing replaced brake rotors by laser cladding. It turns out that the energy consumption and CO2 footprint of the laser cladding refurbished brake rotors are 80% and 90% less than the virgin brake rotors. The results show that the refurbished brake rotor yields higher friction compared to the original cast iron utilizing the same pad material. The wear and particle emissions of the disc brake contact are in this study higher for the laser-cladded one compared to the original cast iron one.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Disc brake, Friction, Laser clad rotor, LCA, Particle emission, Wear
in
Tribology Letters
volume
69
issue
2
article number
57
publisher
Springer
external identifiers
  • scopus:85104228595
ISSN
1023-8883
DOI
10.1007/s11249-021-01421-1
language
English
LU publication?
yes
id
fccdb3d9-ef7d-44fc-b703-93817f29924c
date added to LUP
2021-04-24 11:33:27
date last changed
2022-04-27 01:41:23
@article{fccdb3d9-ef7d-44fc-b703-93817f29924c,
  abstract     = {{<p>In this study, grey cast iron disc brake rotors are refurbished by adding a surface layer through laser cladding. Current methods to deal with replaced rotors mainly include remelting, with a minority fraction disposed in landfill. Both approaches result in a huge waste of resources and an increase in CO<sub>2</sub> footprint. From a sustainable point of view, this study aims to evaluate the feasibility of refurbishing brake rotors by a combined environmental and tribological performance approach. A streamlined life cycle assessment is conducted to compare the environmental impacts between producing virgin grey cast iron brake rotors and refurbishing replaced brake rotors by laser cladding. It turns out that the energy consumption and CO<sub>2</sub> footprint of the laser cladding refurbished brake rotors are 80% and 90% less than the virgin brake rotors. The results show that the refurbished brake rotor yields higher friction compared to the original cast iron utilizing the same pad material. The wear and particle emissions of the disc brake contact are in this study higher for the laser-cladded one compared to the original cast iron one.</p>}},
  author       = {{Olofsson, Ulf and Lyu, Yezhe and Åström, Anna Hedlund and Wahlström, Jens and Dizdar, Senad and Nogueira, Ana Paula Gomes and Gialanella, Stefano}},
  issn         = {{1023-8883}},
  keywords     = {{Disc brake; Friction; Laser clad rotor; LCA; Particle emission; Wear}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{Springer}},
  series       = {{Tribology Letters}},
  title        = {{Laser Cladding Treatment for Refurbishing Disc Brake Rotors : Environmental and Tribological Analysis}},
  url          = {{http://dx.doi.org/10.1007/s11249-021-01421-1}},
  doi          = {{10.1007/s11249-021-01421-1}},
  volume       = {{69}},
  year         = {{2021}},
}